e and Compound Interest (VIDEO!)

The number e arises as the number that makes calculus “easy,” but it is often presented to students first in a pre-caclulus class as a number arising from the study of compound interest. Very few folk seem to ask whether or not these two e’s really are the same. They are! This video – which assumes familiarity with calculus – proves this.

ON-LINE SHORT COURSES!

QUADRATICS, Permutations and Combinations, EXPLODING DOTS, and more!

Written for educators - and their students too! - this website, slowly growing, takes all the content Tanton has developed in his books, videos, and workshops, and organizes it into short, self-contained, and complete, curriculum units proving that mathematics, at all points of the school curriculum, can be joyous, fresh, innovative, rich, deep-thinking, and devoid of any rote doing! Let's teach generations of students to be self-reliant thinkers, willing to flail and to use their common sense to "nut their way" through challenges, to assess and judge results, and to adjust actions to find success. (Great life skills!)